The black shirt would also fade over time because the suns rays would eat up the shirt. #2 Question: Which method of heat transfer describes vertical circulation of a fluid as in Hadley Cell? Correct Answer: C) My Answer: A) Why it’s Wrong: Convection, Because of the circulation in the Hadley cell, two pressure belts are created. The first is a belt of semi permanent high pressure that results from the sinking air at 30°. This belt of high pressure is called the subtropical ridge.
| 56 | | 13 | 48 | | 57 | | Questions: 2. The freezing point of paradichlorobenzine is approximately 53.2 °C but my graph illustrates it as 51°C. (Note this is due to the different atmospheric pressures and concentration of paradichlorobenzine which causes some minor variation.) 3. The melting point of paradichlorobenzine is approximately 53.5 °C but my graph illustrates it at 51°C.
2. What gas is produced naturally in the stratosphere and is also a primary component of photochemical smog in polluted air at the surface? a. carbon dioxide b. carbon monoxide c. ozone d. nitrogen dioxide e. hydrocarbons 3. Which of the following is not considered a temperature scale? a. Fahrenheit b. Kelvin c. Calorie d. Celsius 4.
If the reaction is not spontaneous under standard conditions at 298K, at what temperature (if any) would the reaction become spontaneous? a) 2 PbS (s) + 3 O2 (g) → 2 PbO (s) + 2SO2 (g) ; ΔH° = -844 kJ; ΔS°= -165 J/K b) 2 POCl3 (g) → 2 PCl3 (g) + O2 (g) ; ΔH° = 572 kJ; ΔS°= 179 J/K 5. Consider the reaction H2 (g) + F2 (g) → 2 HF (g). a) Using data in your Appendix B, calculate ΔG° at 25°C b) Calculate ΔG at 298K if the reaction mixture consists of 8.0 bar of H2, 4.5 bar of F2 and 0.36 bar of HF. 6.
On comparing pain variable in both the groups, there was non significant changes. It was assumed that in group A (diclofenac) there was decrease in pain level the reason behind that might be the diclofenac was effective in reducing pain on non specific cervicalgia by inhibit the transmission of pain through A- beta fibre to close the pain gate. Diclofenac inhibit the mediators of the inflammatory response to injury such as a prostaglandins. Iontophoresis is a application of current to transdermally applied ionized drug move to skin. The current causes the ions deposits into the tissues.
The ULTIMATE Chemistry Semester 2 Study Guide! Iron: Fe+2 is ferrous Fe+3 is ferric Copper: Cu+1 is cuprous Cu+2 is cupric Lead: Pb+2is plumbous Pb+4 is plumbic Tin: Sn+2 is stannous Sn+4 is stannic Periodic Table TRENDS * As you move right along the periodic table… decreasing atomic radius, increasing ionization energy, increasing electronegativity, increasing electron affinity, constant shielding * As you move down the periodic table… increasing atomic radius, decreasing ionization energy, decreasing electronegativity, increasing shielding WTF is that stuff? * Atomic radius is the distance between the nuclei of atoms when they are involved in a chemical bond. As you increase the number of protons in the nucleus
It keeps you warm, it is perfect for outwear and keeps your body heat. Without proper fleece made from polyester, you can lose a lot of body heat and you will feel cold and unprotected. It is light on weight and you can put a spare in your rucksack. Base layer (thermals) – the base layer could be a t-shirt or a long sleeve shirt. It dries quickly, it is very light on weight, you can actually squeeze it, if it is wet and it will dry immediately.
| |hot water plus match |Air inside bottle was very foggy with the presence of smoke. | (4 points) 1. Cloud formation is really just the process of water vapor turning to liquid in the air. Name that water cycle process and explain why it occurs in the air? Hydrologic Cycle The elements that combine to make water Hydrogen and oxygen are found in dust, grasses, and other stuff that formed Earth.
As it was uncapped some of the heat would have been lost to the air and as one of our assumptions was that the heat released by the reactions was used only to heat the water the value calculated will be off. The consequence of this source of error would be the measurement of a lesser final temperature and therefore the heat of reaction calculated would also be less. Another source of error could be due to the use of a white Styrofoam cup and the dissolving of white sodium hydroxide pellets. It would be easy to miss if the reaction had yet to fully take place meaning the final temperature recorded would be lower and heat of reaction calculated would be lower. A final possible source of error could be that not a precisely even amount of HCl and NaOH were used for the neutralization reactions in part two and three.
The emission spectrum looks like the opposite of the absorption spectrum. The emission spectrum is all black with multicolored lines throughout it in order or ROYGBIV. Emission spectrum is formed when an excited gas is viewed directly through a spectroscope. Most of the spectra we observed were emission spectra. During this lab I learned that spectra are sometimes referred to as chemical fingerprints.